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HA40 4-Channel Controller
Name / Eunits ASCII Data Fields
The first two items in this menu are for entering the 10 character channel Name and engineering unit ASCII fields. Name should describe the channel’s data in user terminology such as tag # or other description. Eunits should define the units of measure for what this channel is to display. Section 2.6 describes how to modify these fields using the keypad.
Input Measurement Range
The Zero / Span menu options allow configuration of the measurement range displayed by this channel. Measurement Range defines the range of the input signal’s engineering units. For example, if a channel’s input is
Decimal Point Resolution
Resolution of the displayed channel value is configured in the Decimal Pts. menu by setting the number of digits trailing the decimal point. Displayed readings are limited to a maximum of four digits with a polarity sign.
100.0.Resolution may be limited further by setting decimal points to 0 where in the above example, 0ppm reads 0 and 100ppm reads 100.
Turning Off Unused Channels
The Channel Active menu option asks if this channel is to be utilized. NO causes the controller to never process inputs applied to this channel and no alarms are tripped or data displayed. Inactive channels have a line drawn through them on the Setup screen to indicate they are turned off.
HA40 Technical Manual | Revision 1 (07/08) |